Relieve Joint Pain and Help for Injury Recovery - Simulate hand kneading,helps to relax knee and the surrounding calf and thigh area muscles, reduce joint pain and muscle stiffness,the heating will further relieve muscle soreness and help with better circulation, reduce joint swelling, speed up injury recovery.Heated Massage 2-in-1 Knee Pads: With 3 modes of heating and vibration, you can enjoy all 3 functions simultaneously or individually.Adjustable Wrap Fit Most People - Ergonomic designed with separated long straps for upper calf and lower thigh, make it easier to ware, and the velcro design allows to adjust the wrap size and keep it in place, fits perfectly for small knees or big knees.Easy Operation and Safety Usage - This knee massager has built-in control panel, very easy to operate, functions or levels are dispalyed with different colors of indicator light. and it is programmed with a 5 mins auto shut off function,no need to worried about forgeting to turn it off, avoide overheated or overmassaged, safe to use.